Results: There was no premature luteotropic hormone (LH)peak in the BFh group, while there were LH peaks in the Chh and Fhh groups.

• Fhh组：55例57个周期，按FSH/hMG/hCG方案进行。 结果：每周期平均促性腺激素（Gn）用量BFh组为18.；62±5